ref: fecc1652cb5196838ea5382264e471fea8db887e
dir: /include/cst_cart.h/
/*************************************************************************/
/* */
/* Language Technologies Institute */
/* Carnegie Mellon University */
/* Copyright (c) 2000 */
/* All Rights Reserved. */
/* */
/* Permission is hereby granted, free of charge, to use and distribute */
/* this software and its documentation without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of this work, and to */
/* permit persons to whom this work is furnished to do so, subject to */
/* the following conditions: */
/* 1. The code must retain the above copyright notice, this list of */
/* conditions and the following disclaimer. */
/* 2. Any modifications must be clearly marked as such. */
/* 3. Original authors' names are not deleted. */
/* 4. The authors' names are not used to endorse or promote products */
/* derived from this software without specific prior written */
/* permission. */
/* */
/* CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK */
/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
/* SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE */
/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
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/* THIS SOFTWARE. */
/* */
/*************************************************************************/
/* Author: Alan W Black (awb@cs.cmu.edu) */
/* Date: January 2000 */
/*************************************************************************/
/* */
/* CART tree support */
/* */
/*************************************************************************/
#ifndef _CST_CART_H__
#define _CST_CART_H__
#include "cst_file.h"
#include "cst_val.h"
#include "cst_features.h"
#include "cst_item.h"
#include "cst_relation.h"
#define CST_CART_OP_NONE 255
#define CST_CART_OP_LEAF 255
#define CST_CART_OP_IS 0
#define CST_CART_OP_IN 1
#define CST_CART_OP_LESS 2
#define CST_CART_OP_GREATER 3
#define CST_CART_OP_MATCHES 4
#define CST_CART_OP_EQUALS 5
typedef struct cst_cart_node_struct {
unsigned char feat;
unsigned char op;
/* yes is always the next node */
unsigned short no_node; /* or answer index */
const cst_val *val;
} cst_cart_node;
typedef struct cst_cart_struct {
const cst_cart_node *rule_table;
const char * const *feat_table;
} cst_cart;
void delete_cart(cst_cart *c);
CST_VAL_USER_TYPE_DCLS(cart,cst_cart)
const cst_val *cart_interpret(cst_item *item, const cst_cart *tree);
#endif